Steel form for and method of enveloping with concrete pipe lines and the like



3 sheets-sheet 2 NG WITH PIPE LNES AND THE LIKE Filed March 19 r 1924 J.T. RICE AND METHOD OF ENVELOPI o o o o/o oo o o o o o o o o o o o c o oo o o o o o o STEEL FORM FOR sept. 22,'-1925 M a 1 (h-7&7

ATTORNEYJ Patented Sept. 22, 1925.

UNITED PATENT (3F-FICE.

Jessen '.1. mon, kor KI-NGSTQN, YORK.

STEEL noni/L fron AND Marston ,or nnvnnolrre WITH CONCRETE PIPE LINESAnn LIKE.

Application led March 1 9, 1924. Serial N o. 700,226.

To all whom t may concern:

Be it known that Ll, JOSEPH "'l. RIGF., a citizen of the United lStates,and .resident of the city of Kingston, in .the county of Ulster andSta-te of 'New "York, have vinvented certain new vand usefulImprovements in Steel Forms for and Methods vrof Enveloping withvConcrete Pipe Lines and the like, .of which `the following is aspecication.

My invention relates to steel forms rand the method of applying them, tocoat with concrete steel pipes and other ,curved f surfaces.

In preparing forms for coverings for riveted steel ,pipe lines and othercurved sur* faces, the present .practice is to use wooden forms or aunitary steel form. As to wood, lthe present practice is to prepare,ifit and 'brace the forms as the work progresses and zu the form andbracingarelbroken down after the cement lhas set. This fhas 'been veryeX- pensive, both 'in labor and material. 'In connection with steelforms, they have been of unitary character and so fheavyas to require2f) the use of steam cranes to remove the forms, thereby necessitatingthe flaying of the tracks on which the .crane can work, or resetting thecrane from time 'to time as the Work progresses.

'By my invention, I provide .steel gforms that are readily installed andremovable, and capable of continuous and progressive re-.use andbeing.sectional in character, can be made of any length that the particularjob shows 4is c lesirabl'e.

Another object of my invention is to obviate the destruction andrefabrication y of these forms on reuse Another object of my inventionis to .ob-

f1@ viate the use of complicated bracings'to support the forms while.the conc-nete is being set.

Another objectof my invention is to `provide means to secure a minimum,predetermined space between the exterior surface of the pipe line andthe outermost ,surface of the forms, 4in which space grout, cement orconcrete may be poured to form `the `coverilis 0f the Pin@ lne- Anotherobject of my invention is to so construct and arrange said forms thatthey maybe readily assembled and disassembled by manual ,labor with aminimum expendil ture of labor and materials.

tnotherobject 0f my invention is t0 Previde forms for a concreteenvelope 4-fo'r `steel 1pipes and other .curved surfaces, this,coinplete envelope being in 'Contact at all points with the outersurface of the pipe line, preserves the pipe linegby keeping it `fromrusting. By having the envelope yof a'predeter- Fig. 8 :is across-section `slmwingthe loc'king pin `or dog.

Fig. 4 is a cross-section of Sthe line af-a Fig u5 Iis a top View of thepipe line and sections.

5F ig. Gis a detail showing the cradles.

Fig. 7 shows "thearch `v Fig. l8 .shows an Aarch plate Fig. "9 is la`section thereof. i i

Fig. -10 `shows 'the base plate and Fig. 1 11 is a section thereof.

In the drawings, the riveted steel pipe line l, is to 'be coated yorenveloped with a concrete coating 2. While the drawings show a steelpipe line l, it is `obvious that 'my -invention Ybe employed -lin[coating or -enveloping with concrete the outside of a 4curved tunnel orother continuous curved surfaces. o t o The 'form consists voflstra`i-grl1`tibase pilates "having angle lironsfS 'andafi'ller 9 withrivets 1'0 to fasten together the vangle irons, fillers, and, baseAplates to .fform a grooue Kin 'which Athe side lplates 'may 'beinserted. )The plates v5 ghave footingsll riveted to thebase '.Iiilatleswith the rivets 12% more Particularly Shown in Fiss- 10 and 1.1

The arch plates7, are lconcave and have filler 1 2 and angle ironhsl`riveted to lthe plates to form grooves into which the neXt fnlate ,maybe inserted, mere. fully Shown in 8 .and 9. side plates '6, thoughstraight, employ the groove construction of the 'afee Plates .S0 thatarcfhinletes and .Side pilates .may .ft together by .a tonele andislooreeonneefenf The arch ribs 1 4 are of angle 4 iron and are.eenteured Se es te f@110W for a minimum predetermined .Space 'betweenthe Outer Periphery of the pipe line 1 and the innermost surface of theplates, to provide for the minimum thickness of the concrete envelope.Two of these arch ribs 4 are fastened endtoend by bolts 15 and plates15, or other fastening means and are hung over the spacing blocks 16.

As shown more particularly in. Fig. 3 the plates are fastened to thearch ribs 4 by locking pins or dogs 17 that fit around the arch ribs 4and are driven into the holes 18 in angle iron 8. If the dogs do not fittight enough against the arch ribs, ordinary wedges 3l may be driven inbetween the dogs and arch ribs. The angle irons on the Vplates are notthe full-length of the plates in order to provide space at the centerand ends thereof for the arch ribs 4 as indicated at 19.

If found necessary, additional bracing may be employed by placing anordinary wooden beam between the bank and the plates as indicated at 28in Fig. 1 or a beam may be placed longitudinally along the plates asindicated at 29 and braces 30 at right angles thereto at intervalsagainst said Y beam and against the bank.

To keep the plates from being forced out of the grooves in theunderneath plates by pressure of the concrete against the plates, Iemploy tie rods 2O as a reinforcing or stiffening means. This tie rod isslightly bent at one end 21, to fit into the hole '22, in one of theflanges of the angle iron. The other end 23` is in the form of a wedgeshape hook and being driven or wedged onto-a flange of the angle iron ofthe plate below causes the plates to be locked in vertical alignment. f

I employ a bulkhead form 24 which form is divided into four parts,bolted together, and the inner edge completely encircles the outercircumference of the pipe line'l. The outer edge of this bulkhead form24 is in alignment with the outer edge of the arch ribs 4. The bottomedge yof the bulkhead form 24 is in alignment with ythe bottom edge ofthe cradle 3.

Said bulkhead form 24-is fastened on one side by the arch-rib 4 by meansof clamps 25, more particularly shown in Fig. 4. On the other side it isheld fast by collar 26 which ts around the pipe line 1, being tensionedthere-against by the screw bolts 27.

In practice, the cradles 3 are first laid spaced apart, as indicated inFig. 6. These cradles cannot becontinuous, because the pipes are on thejob in about 15 ft. lengths and must be riveted together. In order torivet the pipes there must be space around the circumference of the pipefor a workman to use a bucking-up hammer on the outside of the pipe, inthe riveting operation.

The pipes then are riveted together in a continuous pipe line and thewater put therethrough under the usual pressure. Grout is then placed onthe cradles shortly before the concrete envelope is to be put on.

Then the lowermost plates 5 are set on both sides of the pipe line forthe distance that the forms are to be used, it being understood thatthese forms are sectional in character and any length of form may beemployed.

The spacing blocks 16 are placed on top of the pipe line 1 at intervalsof'around seven and one-half feet in the case of a pipe line the insidediameter lof which is eight feet ten inches. These arch ribs 4 hangloosely from the spacing blocks 16 and lower spacing blocks are employedas shown at 16a, Fig. 1. The base plates 5 are then clamped to the archribs 4 by means of dogs 17. The concrete is then put in and tamped underthe bottom of the pipe lines to form with the cradles 8 a continuousbase for the pipe line 1. The side plates 6 are then inserted into thegrooves of the base plates 5, said side plates are locked to the archribs 4 by means of the dogs 17 and are stiffened and heldy into contactwith the grooves in the base plates 5, by means ofv the tie rods 20. Theconcrete then is likewise poured. |Ihe same procedurev is followed withregard to the side plates 6 and the arch plates 7. In the form shown inFig. 1 two lengths of concave arch plates 7 are employed on each side ofthe pipe line l, leaving a space on top for which there are no plates.

IVhere the pipe line takes a quick bend, it is necessary to remove aportion of the iange as indicated at 30, Fig. 10, similar portions beingremoved on the upper plates to permit the plates to telescope in orderto obtain the change of direction.

The space at the top has the concrete set on without the use of formswhich are not needed at that place. This space without plates is shownin Fig. 5.

In pouring the concrete, as heretofore described, the spacing blocks 16and 16a are removed just before the concrete reaches them, the concretetaking the place of the spacing block.

IVhere the concrete is put in at the end of a length of forlms, theconcrete would exude therefrom, if the bulkhead form 24 were notemployed, so at the end of the series of forms as set up, the bulkheadform is placed, by being fastenedy to the arch rib 4 by means of clamps25 and held in contact on the other side by means of the ring or collar26. After llO the concrete is set the plates, arch ribs, bulkhead formand other parts are removed and set up on the next section of the pipeline to be eneveloped and the process of putting on the concreterepeated as here outlined.

By this method steel forms are made standard, are easily applied and maybe used again and again, without refabrication and `Letztere goingspecification khas gone into details as to the dimensions of the formshaving an inside diameter of eight feet ten inches. Such dimensions mayvary Linder different conditions, and I do not limit myself to thedimensions herein set forth.

It will thus be seen that there is herein described apparatus in whichthe several features of this invention are embodied, and which apparatusin its action attains the various objects of the invention and is wellsuited to meet the requirements of practical use.

As many changes could be made in the above construction, and manyapparently widely dierent embodiments of this invention could be madewithout departing from the scope thereof, it is intended that all mattercontained in the above ldescription or shown in the accompanyingdrawings shall be interpreted as illustrative and not in a limitingsense.

I claim:

l. In forms for enveloping with concrete pipe lines and the like, base,side and arch plates, means for connecting the contiguous edges of saidplates, arch ribs supporting said side and arch plates, and means tospace the inside periphery of the plates a minimum predetermineddistance from the outerl periphery of the pipe line.

2. In forms for enveloping with concrete pipe lines and the like, base,side and arch plates, tongue and groove connections between the edges ofsaid plates, arch ribs supporting said plates a minimum predetermineddistance from the outer periphery of the pipe line.

3. .In forms for enveloping with concrete pipe lines and the like, base,side and concave arch plates, said side and arch plates being supportedby the arch ribs, all said pla-tes being connected together by tongueand grooves, reinforcing means to prevent the tongues from escaping fromthe grooves when said forms are filled with concrete, means forfastening said arch ribs to said base plates, means for fastening saidside and arch plates to said arch ribs, and spacing means interposedbetween the inner periphery of the arch ribs and the outer periphery ofthe pipe line.

' 4E. In forms for enveloping with concrete pipe lines and the like,standard base, side and arch plates, means for connecting the contiguousedges of said plates, standard arch ribs,,demountablyfastened, and meansto `space the `inside `periphery 'of Ithe arch `ribs a predetermineddistai'ice Afrom :the `ou t er periphery of `the pipe line, ,all of saidparts interchangeable and capable of 're-use fdr their respectivepurposes.

' 5. In forms for enveloping with :concrete pipe llines Aand Vthe like,base, side Iand arch plates, demountably fastened, arch ribs, supportingsaid side Aand arch plates, means to space the inside periphery of theplates a minimum predetermined distance from the outer periphery of thepipe line, together with bulkhead forms encircling a pipe anddemountable means for holding said bulkhead forms rigid.

6. In forms for enveloping with concrete pipe lines and the like,longitudinal base, side and arch plates, tongue and groove connectionsbetween the edges of said plates, arch ribs supporting said plates,means to space the inside periphery of the plates a minimumpredetermined distance from thel outer periphery ofthe pipe line,together with bulkhead forms encircling a pipe and demountable means forholding said bulkhead form rigid.

7. In forms for enveloping with concrete, pipe lines and the like, base,side and concave arch plates', said side and arch plates being supportedby the arch ribs, said plates being connected together by standardconnecting means, auxiliary reinforcing means to prevent the plates fromseparating when said forms are filled with concrete, means for fasteningsaid side and arch plates to said arch ribs, spacing means interposedbetween the inner periphery of the arch ribs and the outer periphery ofthe pipe line together with bulkhead forms encircling a pipe anddemountable means for holding said bulkhead form rigid,

8. In forms for enveloping with concrete pipe lines and the like,standard base, side and arch plates, demountably fastened, standard archribs demountably fastened, means to space the. inside periphery of thearch ribs a predetermined distance from the outer periphery of the pipeline, together with bulkhead forms encircling a pipe and demountablemeans for holding said bulkhead forms rigid.

9. In forms for enveloping with concrete pipe lines and the like, incombination with a series of longitudinal fo-rms, demountable bulkheadforms, said bulkhead forms on the inner edge encircling the pipe line,and being held rigid on one side by a demountable collar encircling thepipe line and on the other by being fastened by clamping pins to archribs, the outer edge of said bulkhead forms being in alignment with thearch ribs at the top and sides and at the bottom in alignment with thebottom edge of a cradle.

10. In forms for enveloping with concrete pipe lines and the like, base,side and concave arch plates, said side and arch plates being supportedby the arch ribs, all said plates being connected together by tongue andgrooves, reinforcing means to prevent the tongues from escaping from thegrooves when said forms are filled with concrete, means` for fasteningsaid arch ribs to said 10 base plates, means for fastening said side andarch plates to said arch ribs, and auX- iliary bracing ineans from thebank to the plates, and ineans interposed between the inner periphery ofthe ,arch ribs and the outer periphery of the pipe line.

Signed at New York in the county of New York and State of New York this17th day of March A. D. 192i.

JOSEPH T. RICE.

